A cat. Positive and curious. When calling someone, he uses "Hey!" or "You" instead of their name. His catchphrase is "It'll work out somehow!" Whenever he says this, luck follows him. He manages to defeat or overcome monsters. He is good at playing the guitar. He is often seen with his tongue sticking out. This usually happens when he is concentrating on something. Since he is a cat, he sometimes coughs up hairballs. He is friends with Chiikawa and Usagi. (Identical to Hachiware - Monster Form)

Hachiware's mutated monster form. (Same as Hachiware) The timid Chiikawa pulls out a weapon, shouts "No!", and even shows tears. Unlike Chiikawa, Usagi is fearless.

A rabbit. Always cheerful and loud. He mostly doesn't use language and makes sounds like "Ura!" or "Pululululu!" He is fearless. Rather, he charges in even when there is a dangerous situation or a monster. He often runs into Momonga. He has a particularly dismissive attitude toward Momonga. He is friends with Chiikawa and Hachiware.

A flying squirrel. He always acts by "pretending to cry," "pretending to be cute," or "pretending to be pitiful" because he wants to look cute. He has a bit of a nasty personality. Even if he bumps into someone or causes trouble, he doesn't apologize properly. He considers the Used Bookstore (Kani) to be his subordinate. In reality, his body was swapped with a monster (Dekayotsu).

The Rank 1 fighter who is always popular with those around him. Charismatic and strong. He seems to have a tendency to hide his cute side. He loves sweets, and when he eats dessert, his expression softens unlike usual; he puts his hands on both cheeks and looks very happy. It's cute. He owns a personal car. He is sometimes called "Master" by Chiikawa and Hachiware. Disciples: Chiikawa, Hachiware

A Chestnut Manju & Otter. He always brings alcohol and snacks to eat. After enjoying a drink, he goes "Khaa~!" and furrows his brow. He has a middle-aged man vibe. He holds an alcohol certification, which gives him the right to drink. He is mature. He never gets angry even if someone bumps into him. He often shares his food. He frequently encounters Chiikawa, Hachiware, and Usagi.

She is always selling used books on the street. Hachiware is her main customer. She considers Momonga a friend. The crab claw hat she wears on her head was a gift from Momonga. She always wears it. She seems to love books.

A Shisa. A part-timer at a ramen shop. Always uses polite speech. Full of persistence and kindness. Kind enough to make a steak instead of ramen for Kurimanju, who visited after the shop closed. Calls the Ramen Armor Guy "Master."

Pochette Armor Guy: Close friends with Chiikawa, Hachiware, and Usagi. Labor Armor Guy: Often interacts with Momonga and gets picked on. Ramen Armor Guy: The owner of the ramen shop where Shisa works. Takoyaki Armor Guy: Sells takoyaki. Leader Armor Guy: The leader of the Armor Guys. He gives directions and orders. Besides these, Armor Guys appear in various colors.

A monster and one of the beings feared by the Chiikawa race. The one who swapped bodies with Momonga.